My Wife's Friend

So, my wife's friend Liz phoned out of the blue, asking if she could visit for the weekend. This pissed me off more than somewhat as my wife (Anna) and I had plans. However, Anna agreed, and bang went our plans for the weekend. Liz arrived on Friday afternoon. She is tall, close to 6ft, but very slim and has small boobs, but very perky and firm looking. She was wearing a light cotton summer dress which not only showed she had no bra, but also that she was wearing a thong underneath it. It wasn't anything like black thong under white dress, more that the dress fabric allowed what was underneath to show just enough. So, we ate, and then Anna asked Liz if she wanted to go out or just chill. Liz said she wanted to chill and asked if we could watch a movie maybe. I was still pissed at losing my planned weekend so I thought I would try to shock her a little and also maybe hint at the weekend she had forced me to lose, which involved Anna and I doing some serious fucking. 'Well, we have loads of dvds' I said' action adventure, sci fi, ...porn...you name it. Liz immediately sat up 'You have porn?' (Bingo..I had embarrassed her.. Serves her right). I said sure, lots. Liz said she hadn't seen porn in years as her husband doesn't like it. By now I was intent on really showing her how angry I was so I said we had bonds page porn, lesbian, straight fucking, and what would she like. After a few moments thought she said she wouldn't mind some general porn..a bit of everything. I got the dvd and put it on. Liz, sitting in her armchair was watching intently and I noticed her hand straying now and then to lightly brush her breasts and 'adjust' her skirt. I was loving this. She was as horny as I was, and both of us would go unfulfilled. 'Look, it's been a while....do you guys mind if I masturbate' Anna and I offered to leave the room, but Liz said it was ok. She reached up under her dress and returned her attention to the film. Stroking, at first over her thong and then slowly slipping her hand inside it.. I whispered to Anna to get my cock out and masturbate me, which she did. Now, I would have loved it if this ended in a three way, but at that time, it didn't. Instead, this is what happened. Liz was really getting into it. Glancing from the film to Anna masturbating me, and my hand in Anna's panties fingering her. Then, Liz took her thong off and dropped it on the carpet before hooking her long legs over the arms of her chair and spreading herself wide open. Anna suddenly let go of my cock and got off the couch! She walked across the lounge and retrieved Liz's thong. She brought it back to me and resumed wanking me as I returned my fingers to the wetness of my wife's cunt. With her free hand, Anna held Liz's thong to my face. 'smell her.....lick her....suck her cunt'. It didn't take much of that before I felt myself getting close. Liz, meanwhile came, loudly and wetly. I said I was going to cum, and Liz said 'do it in my thong!' As I spurted, Anna made sure she didn't lose a drop, and held Liz's warm, moist thong over my cock as I unloaded. As far as what happened next. It is not within the rules of ST so will have to remain unspoken. Let's just say that Liz went home on Monday, having had a more interesting weekend than she thought, and my weekend turned out as planned after all.